
(u8vector->string
 (make-u8vector 5 72))		; => "HHHHH"

(u8vector->string
 (u8vector 104 104 104 104 104))	; => "hhhhh"

(u8vector->string
 (u8vector-append
  (make-u8vector 5 72)
  (make-u8vector 5 104)
  (make-u8vector 5 72)))		; => "HHHHHhhhhhHHHHH"

(let ((s (u8vector 101 102 103)))
  (list
   (u8vector? s)				; => #t
   (u8vector-length s)			; => 3
   (u8vector-ref s 1)			; => 102
   (u8vector->string s)			; => "efg"
   (begin (u8vector-set! s 2 104)		
	  (u8vector->string s))		; => "efh"
   (u8vector->list s)			; => (101 102 104)
   (u8vector->vector s)			; => #(101 102 104)
   ))	      ; => (#t 3 102 "efg" "efh" (101 102 104) #(101 102 104))

(u8vector->string
 (vector->u8vector 
  #(75 76 77 78 54 55 56 57 0 255)))	; => "KLMN6789\0\377"

(vector->u8vector
 #(256 -1)) 				; => ERROR

(u8vector-index 
 (u8vector 5 4 3 2 1) 3)
